Rhododendron 'Gartendirektor Glocker' fertilising
- From mid March to begin May Once
Rhododendron 'Gartendirektor Glocker' flowering
- From end March to begin July
Rhododendron 'Gartendirektor Glocker' planting
- From end March to mid May Once
Rhododendron 'Gartendirektor Glocker' pruning
- From begin April to end May Once